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iris [78.8K]
3 years ago
5

If parallelogram ABCD was reflected over the y-axis, reflected over the x-axis,and rotated 180°, where would point A' lie?

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
6 0

Point A is (-4,1) .Point A is reflected along y axis  so y will remain same and x coordinate will have opposite sign .The reflected point A' ---(4,1) .The point is now reflected along x axis so its x ordinate will remain same and y will be at an equal distance from x axis The new reflected point is A" (4,-1) .The point is now rotated 180 degrees the x and y coordinate changes sign so the rotated final point is  A"'( -4,1).

valentina_108 [34]3 years ago
3 0
The answer to the problem is as follows:

<span>(x,y)−−−>(−x,y)</span>
---->it is reflect across y axis <span>
(x,y)−−−−>(x,−y)</span><span>
--->across x axis
 
rotate 180 (x,y) ---> (-x,-y)
 
so it's (-4,1) i am right

I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
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Can u guys help me please ?‍♀️
Over [174]

Answer:

r = 8 ft

Step-by-step explanation:

The formula for circumference of a circle is

C = 2 * pi *r

We know the circumference is 16 pi

16 pi = 2 pi r

Divide each side by 2pi

16 pi /2 pi = 2 pi r / (2pi)

8 = r

7 0
3 years ago
a group of 31 friends gets together to play a sport. first people must be divided into teams. each team has to exactly 4 players
azamat
We have the following values:
 Total people: 31
 People per team: 4
 The number of teams will then be:
 N = (31) / (4)
 N = 7.75
 Round to the previous whole number.
 N = 7
 There are 7 teams.
 Answer:
 
they can make about 7 teams.
3 0
3 years ago
Two equations are given below:
ch4aika [34]
Rewrite the equations;
m+4n=8
m-n=-2

Eliminating m gives;
5n=10
n=2
Replacing for n in the first equation;
m+4(2)=8
m=8
Answer;
(0, 2)
6 0
3 years ago
Let P be the parabola with focus (0,4) and directrix y=x.Write an equation whose graph is a parabola with a vertical directrix t
prisoha [69]

Answer:

y²=4√2.x

Step-by-step explanation:

The focus is at (0,4) and directrix is y=x or x-y =0, for a parabola P.

The distance between the focus and the directrix of the parabola P is

\frac{ |0-4| }{\sqrt{(1)^{2}+(-1)^{2}  } }=\frac{4}{\sqrt{2} }

{Since the perpendicular distance of a point (x1, y1) from the straight line ax+by+c =0 is given by \frac{ |ax1+by1+c| }{\sqrt{a^{2}+b^{2}  } } }

Let us assume that the equation of the parabola which is congruent with parabola P is y²=4ax

{Since the parabola has vertical directrix}

Hence, the distance between focus and the directrix is 2a = \frac{4}{\sqrt{2} }, {Two parabolas are congruent when the distances between their focus and the directrix are same}

⇒ a=√2

Therefore, the equation of the parabola is y²=4√2.x (Answer)

3 0
3 years ago
Mags has 2 1/4 pints of milk in her refrigerator. She likes to have 1/4 pint will her oatmeal in the morning. How many bowls of
amm1812

1)  you need divide   2 and 1 /4  by 1/4 to know the numbers of bowls of  oatmeal  before mags runs out the milk

x = 2+1/4/ 1/4 = 8+1/4÷1/4 = 9 AND THIS IS THE NUMBERS 0F OATMEAL THAH MAGS CAN HAVE WITH 2 1/4 OF MILK

7 0
3 years ago
Read 2 more answers
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